Vulnerability CVE-2009-0778
Published: 2009-03-12   Modified: 2012-02-13

Description:
The icmp_send function in net/ipv4/icmp.c in the Linux kernel before 2.6.25, when configured as a router with a REJECT route, does not properly manage the Protocol Independent Destination Cache (aka DST) in some situations involving transmission of an ICMP Host Unreachable message, which allows remote attackers to cause a denial of service (connectivity outage) by sending a large series of packets to many destination IP addresses within this REJECT route, related to an "rt_cache leak."

Type:

CWE-Other

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.1/10
6.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Linux -> Linux kernel 
Kernel -> Linux 

 References:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7c0ecc4c4f8fd90988aab8a95297b9c0038b6160
http://openwall.com/lists/oss-security/2009/03/11/2
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25
http://www.redhat.com/support/errata/RHSA-2009-0326.html
http://www.securityfocus.com/archive/1/507985/100/0/threaded
http://www.securityfocus.com/bid/34084
http://www.securitytracker.com/id?1021958
http://www.vmware.com/security/advisories/VMSA-2009-0016.html
http://www.vupen.com/english/advisories/2009/3316
https://bugzilla.redhat.com/show_bug.cgi?id=485163
https://exchange.xforce.ibmcloud.com/vulnerabilities/49199
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10215
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7867
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